12799722 has 32 divisors (see below), whose sum is σ = 27760320. Its totient is φ = 3934320.

The previous prime is 12799693. The next prime is 12799723. The reversal of 12799722 is 22799721.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (12799723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12697 + ... + 13667.

It is an arithmetic number, because the mean of its divisors is an integer number (867510).

Almost surely, 2^12799722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12799722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13880160).

12799722 is an abundant number, since it is smaller than the sum of its proper divisors (14960598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12799722 is an equidigital number, since it uses as much as digits as its factorization.

12799722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015 (or 989 counting only the distinct ones).

The product of its digits is 31752, while the sum is 39.

The square root of 12799722 is about 3577.6699121076. The cubic root of 12799722 is about 233.9197255512.

Subtracting 12799722 from its reverse (22799721), we obtain a palindrome (9999999).

The spelling of 12799722 in words is "twelve million, seven hundred ninety-nine thousand, seven hundred twenty-two".